Westlake Royal

Westlake Royal, GatorSeal, Granular Self-Adhering Ice & Water Protection Roof Underlayment

GatorSeal Underlayment is a heavy-duty, modified asphalt-reinforced underlayment that seals around nail penetrations and protects against ice dams and wind-driven rain.

Features & Benefits 

  • Modified asphalt reinforced with an extra heavy fiberglass mat
  • Uniformly seals to the deck and around fastener penetrations
  • Helps to protect building from damage due to ice dams and wind-driven rain
  • UV protected surface
  • Aggressive bond at low temperatures
  • 20-year warranty

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